Home / 827,492.10-1,242,404.55-512,564.10

Finding the Fourth Proportional to 827,492.10, 1,242,404.55 and 512,564.10

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Solution

The fourth proportional to 827,492.10, 1,242,404.55 and 512,564.10 is: 769,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,492.10 : 1,242,404.55 = 512,564.10 : x
  2. Step 2: Convert to fraction form
    827,492.10/1,242,404.55 = 512,564.10/x
  3. Step 3: Cross multiply
    827,492.10x = 1,242,404.55 × 512,564.10
  4. Step 4: Simplify right side
    827,492.10x = 636,811,970,006.66
  5. Step 5: Solve for x
    x = 636,811,970,006.66/827,492.10
  6. Step 6: Final answer
    x = 769,568.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.